THE WEBGIS BASED JIANGSU OILFIELD MANAGEMENT SYSTEM IMPLEMENTED WITH A SPATIO-TEMPORAL DATA MODEL

摘要

Planning and assessment in maintenance, renewal and working status of oil field facilities and oil production management are evolving toward complex, spatially explicit regional assessments. These problems have to be addressed with object-oriented spatio-temporal data models that can restore, manage, query and visualize various historic and updated basic information concerning with oil field facilities and production activities as well as compute and evaluate the working status of those facilities so as to provide online forecasting to oil field leaders on renewal, maintenance of those facilities and the planning of safe and reasonable oil production activities at different spatial and temporal scales. The extensive data requirements and the difficult task of building input parameter files, however, have long been an obstacle to the timely and cost-effective use of such complex models by resource managers. The college of Geo-science, Nanjing University, in cooperation with the Jiangsu Oil field Company, has developed a web-GIS based management system to facilitate this process. The frequent changes of pipeline (water and oil) locations and dynamic build-up and abandon of oil wells, together with the relevant adjustments on pipeline and the station facilities have led to many difficulties for the development of the Web-GIS Based Jiangsu Oilfield Management System. In terms of the spatial and temporal characteristics of historic and currently available information on facility and oil production of the Jiangsu oilfield, we designed an object-oriented spatio-temporal data model that combines spatial, attribute and temporal information to implement the management system. Using this system, we can update, query and analyze oilfield information as well as manage historical data, and a visualization tool was provided to help the user interpret results. The utility of the system has been demonstrated on the production activities of the Jiangsu Oilfield Company.